Nanotechnology

Carbon Nanotubes and Graphene for Electronics Applications 2011-2021 Carbon Nanotubes and Graphene for Electronics Applications Single User License $3995 Carbon Nanotubes (CNTs) and graphene exhibit extraordinary electrical properties for organic materials, and have a huge potential in electrical and electronic applications such as sensors, semiconductor devices, displays, conductors and energy conversion devices (e.g., fuel cells, harvesters and batteries). This report brings all of this...Read Full Story

Biomedical Polymers and Polymer Therapeutics by Emo Chiellini, Junzo Sunamoto, Claudio Migliaresi, Raphael M. Ottenbrite, Daniel Cohn (1) Buy new: $159.00 19 used & new from $35.00 (Visit the Best Sellers in Biophysics list for authoritative information on this product's current rank.) Click Check Price and Read MoreRead Full Story

Carbon nanotubes and graphene consist of just a couple of layers of carbon atoms, but they are lighter than aluminium, stronger than steel and can bend like spring-coils. Physicist Niklas Lindahl at the University of Gothenburg, Sweden, has been studying the unique properties of the materials, which in future may result in improved electronics and light, strong material. Forests of carbon nanotubes can be grown in various forms. Closer inspection using an electron microscope enables you to...Read Full Story

Swiss scientists have created a minor sensation in synthetic chemistry. The team of scientists from ETH Zurich and Empa, the Swiss Federal Laboratories for Materials Science and Technology, succeeded for the first time in producing regularly ordered planar polymers that form a kind of «molecular carpet» on a nanometer scale. Back in 1920 at ETH Zurich, the chemist Hermann Staudinger postulated the existence of macromolecules consisting of many identical modules strung together like a chain...Read Full Story

Physicists at the University of New South Wales have observed a new kind of interaction that can arise between electrons in a single-atom silicon transistor. The findings, published in January in the journal Physical Review Letters, offer a more complete understanding of the mechanisms for electron transport in nanostructures at the atomic level. The study is already available on  arXiv . “We have been able to study some of the most complicated transport mechanisms that can arise up to the...Read Full Story

The world’s strongest neutron beam is produced by a scientific instrument at the research neutron source FRM II (Forschungs-Neutronenquelle Heinz Maier-Leibnitz) at the Technischen Universitaet Muenchen (TUM). But that is not all: During the long maintenance break in 2011, the instrument PGAA (Prompt Gamma Activation Analysis) was improved to give it the best ratio between usable neutrons and noisy background radiation worldwide. It is now possible to determine the elementary composition of...Read Full Story

Some cool ac electrolysis images: Multi-walled carbon nanotube DoITPoMS , University of Cambridge A variety of techniques may be used for the synthesis of carbon nanotubes. These include electrolysis of molten salts with a graphite cathode, chemical vapour deposition, and striking graphite with an electric arc. This multi-walled tube was produced by the catalytic cracking of a hydrocarbon gas. The graphitic planes are clearly visible and a thin layer of amorphous carbon can be seen on...Read Full Story

Rice University researchers show how far nanoparticle chains can carry a signal Microscopic channels of gold nanoparticles have the ability to transmit electromagnetic energy that starts as light and propagates via "dark plasmons," according to researchers at Rice University. A new paper in the American Chemical Society journal Nano Letters shows how even disordered collections of nanoparticles in arrays as thin as 150 nanometers can be turned into waveguides and transmit signals an order of...Read Full Story

Think of it as cooking with carbon spaghetti: A Kansas State University researcher is developing new ways to create and work with carbon nanotubes -- ultrasmall tubes that look like pieces of spaghetti or string. These carbon nanotubes -- made of graphene, an atom-thick sheet of carbon -- have the perfect ingredients for improving laser detectors and rechargeable batteries, according to research by Gurpreet Singh, assistant professor of mechanical and nuclear engineering. Singh is working on...Read Full Story

At the nano level, researchers at Stanford have discovered a new way to weld together meshes of tiny wires. Their work could lead to innovative electronics and solar applications. To succeed, they called upon plasmonics. One area of intensive research at the nanoscale is the creation of electrically conductive meshes made of metal nanowires. Promising exceptional electrical throughput, low cost and easy processing, engineers foresee a day when such meshes are common in new generations of...Read Full Story